PLEASE help with a few MATH questions Give the domain and range of the relation?

U

unfortunate..

New member
1.
Give the domain and range of the relation.
x y
4 9
6 13
0 0
–5–9

A) D: {–9, 0, 9, 13}; R: {–5, 0, 4, 6}
B) D: {4, 6, –5, 9, 13, –9}; R: {0}
C) D: {–5, 4, 6}; R: {–9, 9, 13}
D) D: {–5, 0, 4, 6}; R: {–9, 0, 9, 13}

2.
Give the domain and range of the relation.
x y
5 11
6 13
0 0
–8–15

A) D: {–15, 11, 13}; R: {–8, 5, 6}
B) D: {–8, 0, 5, 6}; R: {–15, 0, 11, 13}
C) D: {–15, 0, 11, 13}; R: {–8, 0, 5, 6}
D) D: {0}; R: {5, 6, –8, 11, 13, –15}

3.
Give the domain and range of the relation.
x y
3 7
10 21
0 0
–8–15

A) D: {–15, 0, 7, 21}; R: {–8, 0, 3, 10}
B) D: {–8, 0, 3, 10}; R: {–15, 0, 7, 21}
C) D: {0}; R: {3, 10, –8, 7, 21, –15}
D) D: {–15, 7, 21}; R: {–8, 3, 10}

4.
Give the domain and range of the relation.
x y
4 9
6 13
0 0
–9–17

A) D: {–17, 9, 13}; R: {–9, 4, 6}
B) D: {–9, 0, 4, 6}; R: {–17, 0, 9, 13}
C) D: {–17, 0, 9, 13}; R: {–9, 0, 4, 6}
D) D: {0}; R: {4, 6, –9, 9, 13, –17}

5.
Give the domain and range of the relation. Tell whether the relation is a function.
x y
0 –5
1 –1
1 3
1 6

A) D: {0, 1}; R: {–5, –1, 3, 6}
The relation is a function.
B) D: {–5, –1, 3, 6}; R: {0, 1}
The relation is a function.
C) D: {0, 1}; R: {–5, –1, 3, 6}
The relation is not a function.
D) D: {–5, –1, 3, 6}; R: {0, 1}
The relation is not a function.
 
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